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Shape keys
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  • MoSin
  • Posted: 12 March 2010 07:55 AM
  • Total Posts: 18
  • Joined: 2010-03-02 14:07:51

Hi,

I want to extract some of a model information over it’s animation. I know I have to use shape keys for it. For now, I have this :

XSI::CGeometryAccessor ga = mesh.GetGeometryAccessor( XSI::siConstructionModeModeling, XSI::siCatmullClark, 0 )
XSI::CRefArray refShapeKeys = ga.GetShapeKeys()
LONG nShapeKeys = refShapeKeys.GetCount()
XSI::ShapeKey currentKey = refShapeKeys[0];
XSI::ShapeKey frame0 = currentKey.EvaluateAt(0)
XSI::CClusterPropertyElementArray frameElem = frame0.GetElements()
LONG frameElemValueSize = frameElem.GetValueSize()
LONG frameElemCount = frameElem.GetCount()

So, first of all, the EvaluateAt method… will it return me the something at a particular frame?
Second of all, the frameElemValueSize gives me 78 right now and frameElemCount, 21670. How can I know what are the frame elements (vertices, polygons...) and each of the values for each element (UVs, position, color....)?? When I call EvaluateAt, information in this array will change too?

Any help will be appreciated!

Thanks!


Replies: 0
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  • MoSin
  • Posted: 12 March 2010 12:29 PM

Well, I found my error. I need to call EvaluateAt on the primitive itself then, the GeometryAccessor is updated to the frame I want.


Replies: 0




   
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